[backport cloud/1.38] fix: dragging (e.g., when selecting text) in Markdown note causes node to drag#8428

AustinMroz merged 1 commit intocloud/1.38Comfy-Org/ComfyUI_frontend:cloud/1.38from

backport-8413-to-cloud-1.38Comfy-Org/ComfyUI_frontend:backport-8413-to-cloud-1.38Copy head branch name to clipboard